ABB Mark VIe controller

The Mark VIe controller is a stand-alone, single-board controller with scalable processing power. It includes built-in power supplies and requires no batteries or jumper settings. Controllers run the ControlST* Software Suite, providing a common software environment for turbine and generator excitation controls in the power island and balance of plant equipment to simplify operations and maintenance. 

The Mark VIeS Safety controller is IEC 61508 certified to SIL 3. 

Controllers are loaded with software specific to its application, such as steam, gas, land-marine (LM), Balance of Plant (BoP), offshore drilling, desalination, CS, and Wind Power Conversion. It can run Relay Ladder Diagrams (RLD) or blocks. The IEEE® 1588 protocol is used through the R, S, and T I/O networks (IONet) to synchronize the clock of the I/O modules and controllers to within ±100 microseconds. Data is transferred to and from the control system database in the controller over the I/O networks (IONet). IONet data includes process inputs/outputs to the I/O packs. 

In a dual system, IONet data also includes: 

• Internal state values and initialization information from the designated controller 

• Status and synchronization information from both controllers In a triple module redundant (TMR) system, IONet data also includes:

 • Internal state values for voting and status and synchronization information from all three controllers 

• Initialization information from the designated controller

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